Urology Practice Questions

Q: A 50-year-old male presents with scrotal pain for 2 days. The pain decreases with elevation of the testis. What is the most likely clinical diagnosis?

Epididymoorchitis. ### Explanation The clinical scenario describes a positive **Prehn’s sign**, which is a classic physical examination finding used to differentiate between causes of acute scrotum. **1. Why Epididymoorchitis is correct:** In **Epididymoorchitis**, inflammation of the epididymis and testis leads to congestion and gravity-dependent pain. When the scrotum is manually elevated, the physical support relieves the tension on the spermatic cord and suspensory structures, leading to a **decrease in pain (Positive Prehn’s sign)**. It typically presents in older men (or sexually active younger men) with a gradual onset of pain over 1–2 days, often accompanied by fever or urinary symptoms. **2. Why the other options are incorrect:** * **Testicular Torsion:** This is a surgical emergency. In torsion, elevation of the testis typically **increases the pain** (Negative Prehn’s sign) because the maneuver further twists the spermatic cord or aggravates the ischemia. The onset is usually sudden and occurs in a younger age group (adolescents). * **Inguinal Hernia:** While an incarcerated hernia can cause scrotal pain, it is usually associated with a cough impulse, intestinal symptoms (nausea/vomiting), and the inability to "get above the swelling." * **Hydrocele:** This is generally a painless, chronic swelling. While an infected hydrocele (pyocele) can be painful, it does not classically demonstrate a positive Prehn’s sign. **3. Clinical Pearls for NEET-PG:** * **Prehn’s Sign:** Positive (pain relief) = Epididymitis; Negative (no relief/increased pain) = Torsion. * **Cremasteric Reflex:** Usually **absent** in Testicular Torsion but **present** in Epididymoorchitis. * **Gold Standard Investigation:** Color Doppler Ultrasound (shows increased blood flow in epididymitis and decreased/absent flow in torsion). * **Age Factor:** Torsion is most common in the 12–18 age group; Epididymitis is more common in men >35 years.

Q: Ureteric colic is characterized by all of the following EXCEPT:

Responds to antispasmodics. **Explanation:** Ureteric colic is a classic surgical emergency caused by the sudden obstruction of the ureter, usually by a calculus. **Why "Responds to antispasmodics" is the correct (incorrect statement) answer:** The primary mechanism of pain in ureteric colic is **prostaglandin-mediated** smooth muscle hyperperistalsis and mucosal edema. While the term "colic" suggests spasm, clinical evidence shows that **NSAIDs (like Diclofenac)** are the first-line treatment because they inhibit prostaglandin synthesis, reducing ureteric pressure and inflammation. Pure antispasmodics (like Hyoscine) are generally ineffective as monotherapy for the intense pain of an obstructing stone. **Analysis of other options:** * **Acute onset:** Ureteric colic typically presents as a sudden, excruciating pain that reaches peak intensity rapidly as the stone enters the narrow ureter. * **Patients prefer to remain still:** This is **false** regarding ureteric colic; patients are typically **restless** and "writhing in pain," constantly changing positions to find relief. This distinguishes it from peritonitis (e.g., perforated peptic ulcer), where patients prefer to lie perfectly still. *Note: In the context of this MCQ, Option B is a known characteristic of peritonitis, making it a potential distractor, but Option C is the standard "except" answer in surgical textbooks regarding pharmacological management.* * **Pain radiates to the groin:** This is a hallmark feature. As the stone moves down the ureter, pain radiates from the **loin to the groin** (T11-L2 distribution), often reaching the scrotum, labia, or inner thigh. **High-Yield Clinical Pearls for NEET-PG:** * **Gold Standard Investigation:** Non-contrast CT (NCCT) KUB. * **Narrowest site of the ureter:** Vesicoureteric junction (VUJ). * **Management:** NSAIDs are superior to opioids for pain relief; Medical Expulsive Therapy (MET) involves Alpha-blockers (Tamsulosin).

Q: What is the cause of hydrocele in infants?

Patent processus vaginalis. **Explanation:** The correct answer is **B. Patent processus vaginalis.** **Underlying Concept:** In fetal development, the testis descends from the abdomen into the scrotum preceded by a peritoneal fold called the **processus vaginalis**. Normally, the upper portion of this sac obliterates shortly before or after birth. If the processus remains **patent** (open), peritoneal fluid can track down into the scrotum, resulting in a **communicating hydrocele**. This is the most common cause of hydrocele in infants and children. If the opening is wide enough to allow abdominal contents (like bowel) to pass through, it is termed an indirect inguinal hernia. **Analysis of Incorrect Options:** * **A. Patent gubernaculum:** The gubernaculum is a mesenchymal structure that guides the descent of the testis; it does not form a sac or channel for fluid. * **C. Cyst of Morgagni:** Also known as the appendix testis, this is a vestigial remnant of the Müllerian duct. While its torsion can cause acute scrotal pain, it is not the cause of a generalized hydrocele. * **D. Hormonal factors:** While maternal hormones may cause transient neonatal breast enlargement or vaginal bleeding, they do not play a role in the anatomical patency of the processus vaginalis. **High-Yield Clinical Pearls for NEET-PG:** * **Management:** Most congenital hydroceles are managed conservatively as they often resolve spontaneously by **1–2 years of age** as the processus obliterates. * **Surgical Timing:** Surgery (Herniotomy) is indicated if the hydrocele persists beyond 2 years or if an associated inguinal hernia is present. * **Key Difference:** Unlike adult hydroceles (usually primary/idiopathic and treated with Lord’s procedure or Jaboulay’s eversion), pediatric hydroceles are almost always **communicating** and require **high ligation** of the patent processus vaginalis.

Q: Tuberculosis of the testis first affects which of the following structures?

Epididymis. **Explanation:** Genitourinary tuberculosis (GUTB) is almost always secondary to a primary focus elsewhere, usually the lungs [2]. In the male reproductive system, the **Epididymis** is the most common site of initial involvement. **Why Epididymis is the correct answer:** The spread of *Mycobacterium tuberculosis* to the male genital tract occurs primarily via two routes: **hematogenous** (blood-borne) or **descending infection** from the urinary tract (infected urine) [1]. The epididymis has a very high vascularity, particularly the globus minor (tail), making it the primary "landing site" for the bacilli. From the epididymis, the infection typically spreads to the testis via direct extension or through the lymphatics. **Analysis of Incorrect Options:** * **Vas deferens (A):** While the vas can be involved (leading to characteristic "beading" of the vas), it is usually affected secondary to epididymal involvement [1]. * **Body of testis (C):** Isolated orchitis is rare in TB. The testis is usually involved secondary to the epididymis (Epididymo-orchitis) because the blood-testis barrier provides some initial protection [3]. * **Tunica vaginalis (D):** This is a serous membrane. While it can develop a secondary hydrocele due to inflammation, it is not the primary site of infection [3]. **High-Yield Clinical Pearls for NEET-PG:** * **Clinical Presentation:** Presents as a painless, "craggy" (hard/irregular) enlargement of the epididymis. * **Beaded Vas Deferens:** A classic sign of TB caused by multiple granulomatous strictures along the vas. * **Scrotal Sinus:** Chronic TB epididymitis may lead to a cold abscess that bursts through the posterior scrotal skin, forming a sinus. * **Infertility:** Bilateral involvement often leads to obstructive azoospermia.

Q: A 18-year-old male presents with pain and tenderness in the left scrotum, with a normal right scrotum. What is the most appropriate investigation?

Color Doppler ultrasound. **Explanation:** The clinical presentation of acute scrotal pain and tenderness in a young male is a surgical emergency, with **Testicular Torsion** being the most critical diagnosis to rule out. 1. **Why Color Doppler Ultrasound (CDUS) is the correct answer:** CDUS is the **investigation of choice** for acute scrotum. While B-mode ultrasound can show structural changes (like edema or whirlpool sign), it cannot assess blood flow. The hallmark of testicular torsion is the **absence or reduction of blood flow** to the affected testis. CDUS has high sensitivity (82-100%) and specificity (88-100%) for diagnosing torsion and differentiating it from inflammatory conditions like epididymo-orchitis (where blood flow is increased). 2. **Why other options are incorrect:** * **B-mode Ultrasound:** Useful for identifying anatomy, hydrocele, or tumors, but insufficient for assessing the vascular compromise essential for diagnosing torsion. * **CT Scan and MRI:** These are time-consuming, expensive, and not readily available in emergency settings. They play no role in the primary evaluation of an acute scrotum where "time is muscle." **Clinical Pearls for NEET-PG:** * **Golden Period:** Surgical detorsion should ideally occur within **6 hours** of symptom onset to ensure a nearly 100% salvage rate. * **Clinical Diagnosis:** If clinical suspicion of torsion is very high, surgical exploration should not be delayed for imaging. * **Prehn’s Sign:** Elevation of the scrotum relieves pain in epididymitis but **not** in torsion (Negative Prehn's sign). * **Cremasteric Reflex:** Typically absent in testicular torsion; its presence makes torsion less likely.

Q: Which of the following statements about varicocele is FALSE?

Asymptomatic cases generally require surgical intervention.. **Explanation:** A varicocele is the abnormal dilation and tortuosity of the pampiniform plexus of veins within the spermatic cord. **1. Why Option C is the correct (False) statement:** The management of varicocele is primarily conservative unless specific indications are met. **Asymptomatic varicoceles do not require surgical intervention.** Surgery (Varicocelectomy) is indicated only if there is: * Documented infertility with abnormal semen analysis. * Significant testicular atrophy (especially in adolescents). * Severe, persistent pain or discomfort. **2. Analysis of other options:** * **Option A (True):** The primary pathophysiology involves **incompetent valves** in the internal spermatic (testicular) vein, leading to retrograde blood flow and venous hypertension. * **Option B (True):** **90% occur on the left side** due to anatomical factors: the left testicular vein enters the left renal vein at a **90-degree angle**, it lacks effective valves at its junction, and it may be compressed between the SMA and Aorta (Nutcracker phenomenon). * **Option D (True):** Percutaneous embolization/ablation via femoral or jugular catheterization is a recognized minimally invasive treatment, often preferred for **recurrent varicoceles** after failed primary surgery. **Clinical Pearls for NEET-PG:** * **Sudden onset right-sided varicocele:** Always rule out a retroperitoneal mass (e.g., **Renal Cell Carcinoma**) obstructing the IVC. * **Gold Standard Investigation:** Color Doppler Ultrasound (shows venous diameter >2mm and reversal of flow on Valsalva). * **Surgical Gold Standard:** Microsurgical Subinguinal Varicocelectomy (lowest recurrence and complication rates). * **Grading:** Grade I (Palpable only with Valsalva); Grade II (Palpable without Valsalva); Grade III (Visible through scrotal skin).

Q: What is the most common late complication of traumatic rupture of the urethra?

Stricture. **Explanation:** The correct answer is **Stricture**. Traumatic rupture of the urethra, whether involving the posterior urethra (associated with pelvic fractures) or the anterior urethra (associated with straddle injuries), leads to significant tissue damage and extravasation of urine and blood. **1. Why Stricture is Correct:** Healing of a urethral injury occurs through **fibrosis and scarring**. Because the urethra is a narrow conduit, the contraction of this fibrous tissue during the remodeling phase (weeks to months after injury) inevitably leads to a narrowing of the lumen, known as a **urethral stricture**. This is the most frequent and clinically significant late sequela, often requiring surgical intervention like urethroplasty or optical internal urethrotomy. **2. Why Other Options are Incorrect:** * **Diverticulum:** While a "false diverticulum" can occur due to localized urine extravasation or post-stenotic dilatation, it is a rare complication compared to the near-universal risk of scarring. * **Retrograde Ejaculation:** This is more commonly a complication of bladder neck surgeries (like TURP) where the internal sphincter is damaged, rather than a direct result of urethral rupture. * **Chordee:** This refers to a ventral curvature of the penis, usually associated with congenital hypospadias or Peyronie’s disease, not typically a late result of urethral rupture. **Clinical Pearls for NEET-PG:** * **Gold Standard Investigation:** For suspected urethral injury, the initial investigation of choice is **Retrograde Urethrogram (RUG)**. * **Posterior Urethra:** Most commonly injured in pelvic fractures (specifically the membranous part). * **Anterior Urethra:** Most commonly injured in "straddle injuries" (specifically the bulbar part). * **Classic Triad:** Blood at the meatus, inability to void, and a palpable distended bladder (with a "high-riding prostate" on DRE in posterior injuries).

Question 1

A 50-year-old male presents with scrotal pain for 2 days. The pain decreases with elevation of the testis. What is the most likely clinical diagnosis?

Accepted Answer

Epididymoorchitis

Answer

Testicular torsion

Answer

Inguinal hernia

Answer

Hydrocele

Question 2

Ureteric colic is characterized by all of the following EXCEPT:

Accepted Answer

Responds to antispasmodics

Answer

Acute onset

Answer

Patients often prefer to remain still

Answer

Pain radiates to the groin

Question 3

What is the cause of hydrocele in infants?

Accepted Answer

Patent processus vaginalis

Answer

Patent gubernaculum

Answer

Cyst of Morgagni

Answer

Hormonal factors

Question 4

Tuberculosis of the testis first affects which of the following structures?

Accepted Answer

Epididymis

Answer

Vas deferens

Answer

Body of testis

Answer

Tunica vaginalis

Question 5

A 18-year-old male presents with pain and tenderness in the left scrotum, with a normal right scrotum. What is the most appropriate investigation?

Accepted Answer

Color Doppler ultrasound

Answer

B-mode ultrasound

Answer

CT scan

Answer

MRI

Question 6

A scrotal swelling is non-reducible but disappears on lying overnight and reappears slowly during the daytime. What is the diagnosis?

Accepted Answer

Congenital hydrocele

Answer

Varicocele

Answer

Indirect hernia

Answer

Sliding hernia

Question 7

Which of the following statements about varicocele is FALSE?

Accepted Answer

Asymptomatic cases generally require surgical intervention.

Answer

Incompetent valves of the testicular vein are responsible for varicocele.

Answer

Approximately 90% of varicoceles occur on the left side.

Answer

Femoral catheterization with spermatic vein ablation is a treatment option for recurrent varicocele.

Question 8

What is the most common late complication of traumatic rupture of the urethra?

Accepted Answer

Stricture

Answer

Diverticulum

Answer

Retrograde ejaculation

Answer

Chordee

Question 9

Ligation of the spermatic cord in orchidectomy for the treatment of testicular tumor is performed at which anatomical landmark?

Accepted Answer

Internal inguinal ring

Answer

External inguinal ring

Answer

Base of the scrotum

Answer

Superior to the epididymis

Question 10

Orchidectomy is not indicated in which of the following conditions?

Accepted Answer

Filarial epididymo-orchitis

Answer

Prostate cancer

Answer

Seminoma testes

Answer

Male breast cancer

Urology — MCQs

Urology — MCQs

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